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Orr laboratory

@orrlaboratory.bsky.social
886 followers 965 following 8 posts

Studying dementia, astrocytes, neurotherapeutics. Pursuing audacious team-based neuroscience and helping the next generation achieve their highest potential. Lab website: www.orrlaboratory.com

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bioRxivpreprint @biorxivpreprint.bsky.social · 02/10/2026
ALS/FTD-linked TDP-43 alterations prevent HSV-1 infection by disrupting cell-adhesion pathways www.biorxiv.org/content/10.64898/20…
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#NeuroDegeneration preprints @prepub-neurodegen.bsky.social · 02/10/2026
ALS/FTD-linked TDP-43 alterations prevent HSV-1 infection by disrupting cell-adhesion pathways #NeuroDegeneration 🧪🧠 www.biorxiv.org/content/10.64898/20…
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bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 02/10/2026
ALS/FTD-linked TDP-43 alterations prevent HSV-1 infection by disrupting cell-adhesion pathways www.biorxiv.org/content/10.64898/20…
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Orr laboratory @orrlaboratory.bsky.social · 05/10/2026
New preprint!! Human #TDP-43, a hallmark of #ALS and #FTD, strongly affects host-virus interactions and #herpesvirus infectivity by disrupting adhesion pathways. We show that TDP-43 is an important convergence point for #neurodegenerative and #infectious diseases. www.biorxiv.org/content/10.6...
biorxiv.org
ALS/FTD-linked TDP-43 alterations prevent HSV-1 infection by disrupting cell-adhesion pathways
TAR DNA-binding protein-43 (TDP-43) alterations are a key hallmark of amyotrophic lateral sclerosis (ALS), frontotemporal dementia (FTD), and other neurodegenerative disorders. Increasing evidence lin...
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Leanne Holt @holtlm90.bsky.social · 29/09/2026
My lab is recruiting a postdoctoral researcher! Interested in astrocyte transcriptional regulation and addiction? We study how astrocytic transcriptional, epigenetic, and chromatin regulation contributes to substance abuse disorders. DM or email me! www.l-holt-lab.com
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Jonas Wietek @jwietek.bsky.social · 12/09/2026
Trying to close Pandoras Box darioamodei.com/post/we-must...
darioamodei.com
Dario Amodei — We Must Pace the Frontier
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Hiten Madhani @hitenmadhani.bsky.social · 27/08/2026
Most basic science departments at UCSF are having faculty searches this year. Biochemistry & Biophysics, Microbiology & Immunology, Cellular and Molecular Pharmacology, Physiology and more. We're looking for new and exciting science and nice people. You'll find them all at aprecruit.ucsf.edu
aprecruit.ucsf.edu
Welcome - AP Recruit
University of California, San Francisco Online Faculty Recruitment
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Dementia Researcher @dementiaresearcher.bsky.social · 24/08/2026
Senior Lecturer role at King’s College London leading Alzheimer’s research focused on disease mechanisms and new treatment development. Closing date: 1st October www.dementiaresearcher.nihr.ac.uk/job/senior-l...
dementiaresearcher.nihr.ac.uk
Senior Lecturer: Basic & Clinical Neuroscience
King’s College London seeks a Senior Lecturer to lead Alzheimer’s research focused on disease mechanisms and new treatment development.
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Orr laboratory @orrlaboratory.bsky.social · 24/07/2026
Our new review article on individual sources of mitochondrial ROS (ISOMRs) 🎯!! We discuss new insights💡on the regulation and activities of ISOMRs, and evolving tools 🔨and perspectives ⚖️ on ISOMR functions and targeting 🚑 for neurodegeneration and other conditions. Free access👇 tinyurl.com/3cp7ftkb
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Max Heiman @heiman.bsky.social · 24/07/2026
For neuroscience PhDs with a strong interest in teaching and mentoring: MIT is hiring a scientific program manager to support activities around a new NIH neuroscience PhD training grant. Salary range $91k - $129k #NeuroJobs careers.peopleclick.com/careerscp/cl...
careers.peopleclick.com
Scientific Program Manager
MIT - Scientific Program Manager - Cambridge MA 02139
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Carmen Falcone @carmenfalcone.bsky.social · 18/07/2026
The first work of the #FalconeLab is finally out!!! 🤩 A story of #astrocytes from evolution to disease. Thanks everyone who made this possible! Varicose projection astrocytes: Conserved reactive cells in brain pathology | #ScienceAdvances www.science.org/doi/10.1126/... @towsonu.bsky.social
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Wendy Xin @droligo.bsky.social · 08/07/2026
Our review on glial orchestration of neurodevelopment is online at @cp-devcell.bsky.social! Great fun working with Krissy Sakers and Pat Sheehan from the Eroglu and Schafer labs, and special thanks to first author Krissy for her tremendous work bringing this to fruition! www.cell.com/developmenta...
cell.com
Glia orchestrate neural circuit development
In this review, Sakers et al. discuss how astrocytes, microglia, and oligodendrocyte lineage cells actively regulate neural circuit formation, refinement, and stabilization. They propose that coordina...
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Society for Neuroscience @sfn.org · 07/07/2026
The #SfN26 Preliminary Program is now available. Get a first look at this year's lineup of scientific sessions, speakers, lectures, & events coming to Washington, D.C. this November. 🔗 vist.ly/5aeb2 What are you most excited for? Drop a comment and let us know! #neurosky #neuroskyence
Conference announcement saying 'See You in Washington, D.C. November 14–18' with people walking below.
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The Transmitter @thetransmitter.bsky.social · 24/06/2026
NEW! Explore @thetransmitter.bsky.social’s newest tool, Neuro Funding Finder. Discover grants, fellowships and funding opportunities for neuroscience research at all career stages. Find your next funding source and apply, all in one place: thetransmitter.org/neuroscience... #neuroskyence
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Cathy Abbott @cathyabbott.bsky.social · 01/07/2026
Do give us a follow at @edinunineuro.bsky.social - swanky new video in which I appear to be utterly miserable throughout (I was just concentrating hard on the autocue, honest 😀)
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Dr. Nathan A Smith @drnathanasmith.bsky.social · 19/06/2026
Your research is ready. Is your job talk? 💡 NEURO YES applications are open now! Senior postdocs: practice your job talk & chalk talk in front of UR’s neuroscience faculty and get noticed by hiring committees. Present. Get feedback. Land the role. 🌐 neuroyes.urmc.edu #NEUROYES #URochesterResearch
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Timothy McBride @mcbridetd.bsky.social · 29/05/2026
BREAKING: This seems worrisome... White House proposes new rules giving political appointees final approval on research grants | Scientific American www.scientificamerican.com/article/whit...
scientificamerican.com
White House proposes new rules giving political appointees final say on research grants
These proposed Office of Management and Budget regulations would render the federal research grant review process opaque
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Michael Williamson @m-r-williamson.bsky.social · 19/05/2026
Thrilled to share that I’ll be starting my lab at the SickKids Research Institute and University of Toronto in August! williamsonlab.ca Recruiting at all levels. Get in touch if you’re interested in astrocyte biology of cognition and disease!
williamsonlab.ca
Williamson Lab
The Williamson Lab studies astrocyte biology across development, cognition, and disease.
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French Glial Cell Club @glialclub.bsky.social · 20/04/2026
Paper alert ! Escartin’s team show that #STAT3 and #NF-kB pathways shape cortical astrocyte heterogeneity in WT and #Alzheimer’s mice. These cascades define astrocyte subpopulations with specific morphology, transcriptional signature, functional features, and impact on disease. @bosremi.bsky.social
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Max Kozlov @maxkozlov.bsky.social · 14/05/2026
As a backdrop: the NIH has awarded less than half the number of new grants it had handed out by this time compared with the average of the previous five years (yes that includes 2025's tumultuous grantmaking year!)
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The Transmitter @thetransmitter.bsky.social · 12/05/2026
@macshine.bsky.social talks with @melcooperphd.bsky.social about her new work showing that astrocytes—long dismissed as the brain’s housekeepers—are wired together in precise, long-range networks that remodel in response to experience. #neuroskyence www.thetransmitter.org/astrocytes/t...
thetransmitter.org
How a hidden network of astrocytes shapes the brain
Astrocytes are wired together in precise, long-range networks that remodel in response to experience, according to new research.
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Society for Neuroscience @sfn.org · 20/04/2026
Science, at its best, is a community effort. From lifetime achievement to emerging talent, from research to outreach, there's an award for the neuroscientists who make our field great. Submit your nomination for a 2026 SfN Award or Prize by Thursday, May 7. 🔗 vist.ly/4z5kf #neurosky
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SJo @sjo09.bsky.social · 20/04/2026
Excited to share our latest in @currentbiology.bsky.social (they who publish the coolest papers!) Memories are encoded by sparse neuronal ensembles (engrams). But most evidence comes from "simple" associative learning tasks. What about more integrative memories like spatial navigation?
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Eric Topol @erictopol.bsky.social · 20/04/2026
some data on the shrinkage
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Orr laboratory @orrlaboratory.bsky.social · 18/04/2026
www.nationalgeographic.com/health/artic...
nationalgeographic.com
Are these overlooked brain cells the key to treating trauma and anxiety?
A growing body of research suggests astrocytes, star-shaped brain cells once dismissed as support players, may lead the way to more precise and effective psychiatric drugs.
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Scott Delaney @scott-delaney.bsky.social · 15/04/2026
Straight from the horse's mouth: If Trump's proposed $5B cut to NIH were enacted in FY27, the number of new NIH research grants would drop **47%** To be clear, this is from a document justifying the request. It's what they *want*. They think this is good. officeofbudget.od.nih.gov/pdfs/FY27/br...
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Isabel N Christie PhD @izzynchristie.bsky.social · 14/04/2026
Wish I could do this PhD with Bal Khahk 😍 Newly appointed Fellow of the Royal Society, he is one of the best scientists to work with right now and joining the @ukdri.ac.uk in @cardiffuni.bsky.social #neuroskyence #opportunities #careers #PhD #glia # www.findaphd.com/phds/project...
findaphd.com
Astrocyte-Neuron Interactions in Neural Circuit Function and Dementia at Cardiff University on FindAPhD.com
PhD Project - Astrocyte-Neuron Interactions in Neural Circuit Function and Dementia at Cardiff University, listed on FindAPhD.com
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Ran Blekhman @blekhman.bsky.social · 05/04/2026
I wrote about why every lab should have AI use guidelines, and how to do it. open.substack.com/pub/blekhman...
open.substack.com
You need to make AI guidelines for your lab
Here's why you should, and how to start
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Sandro Da Mesquita @da-mesquita.bsky.social · 26/03/2026
Sex-specific APOE4-dependent innate immunity regulates meningeal lymphatics, brain lipids, neuroinflammation, and cognition: Neuron www.cell.com/neuron/fullt...
cell.com
Sex-specific APOE4-dependent innate immunity regulates meningeal lymphatics, brain lipids, neuroinflammation, and cognition
Delivanoglou et al. show that expression of APOE4, a risk factor for Alzheimer’s disease, leads to sexually dimorphic lymphatic and inflammatory responses in mice and humans alike. Suppressing APOE4-i...
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Jeremy Day @daylab.bsky.social · 03/03/2026
UAB is recruiting neuroscience faculty at two different levels - come join our vibrant neuroscience community!
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Max Kozlov @maxkozlov.bsky.social · 27/02/2026
Congress rejected massive cuts to US science budgets for 2026, but much of the money still isn’t flowing to researchers. The culprit? The White House Office of Management and Budget (OMB) is quietly slow-walking the release of funds. 🧵👇
nature.com
White House stalls release of approved US science budgets
The US Congress rejected sweeping cuts to science agencies. But the NIH, the NSF and NASA have had their spending slowed.
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James Olzmann @olzmannlab.bsky.social · 25/02/2026
Sooo happy to share our new paper in @nature.com “CLCC1 promotes hepatic neutral lipid flux and nuclear pore complex assembly.” A terrific collaboration with @arrudalab.bsky.social, led by co–first authors Alyssa Mathiowetz and Emily Maymand. www.nature.com/articles/s41...
nature.com
CLCC1 promotes hepatic neutral lipid flux and nuclear pore complex assembly - Nature
CRISPR–Cas9 screening identifies CLCC1 as a factor that increases neutral lipid flux to prevent hepatic steatosis and promotes nuclear pore complex assembly by promoting membrane bending and fusi...
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Eric Topol @erictopol.bsky.social · 26/02/2026
What accounts for the progression from healthy aging to Alzheimer's disease over an extended period of time? The critical role of the immune system, particularly T cells and microglia. A new, excellent review www.cell.com/immunity/abs...
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Jeremy Berg @jeremymberg.bsky.social · 26/02/2026
New and Competitive Renewals Only 803 grants have been made compared to ~2650 in fiscal years 2023 and 2024 through February 20. All institutes and centers (include OD now) have made awards except NIAAA, NLM, NCCIH, and FIC. 3/4
Line graph of the number new and competitive renewal grants funded by NIH in fiscal year 2026 through February 20, compared to fiscal years 2020-2025. The fiscal year 2026 is well below the other curves.
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anil oza @aniloza.bsky.social · 17/01/2026
Pre-long weekend story: Multiyear funding for NIH grants has become a sticking point in negotiating HHS’s appropriations package for 2026 www.statnews.com/2026/01/16/n...
statnews.com
Limit on multiyear funding of NIH grants is a sticking point in Senate budget talks
A clause limiting the use of multiyear NIH grant funding has become a sticking point as the Senate appropriations panel finalizes the HHS spending bill
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Itai Yanai @itaiyanai.bsky.social · 19/12/2025
Doing a PhD is - at heart - one long discussion with your mentor. The discussion changes over time - with unexpected turns and ups & downs - but through it all is a pair of people discussing a topic endlessly to make sense of it. PhD students: choose someone you like to talk to!
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Andrew Octavian Sasmita @aosasmita.bsky.social · 17/12/2025
Lesion-remote astrocytes govern microglia-mediated white matter repair www.nature.com/articles/s41...
nature.com
Lesion-remote astrocytes govern microglia-mediated white matter repair - Nature
After spinal cord injury, lesion-remote astrocytes acquire heterogeneous, spatially restricted reactivity states that shape neuroinflammation, neural repair and neurological recovery.
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John Lukens @lukensjohnr.bsky.social · 17/12/2025
Phosphorylated tau exhibits antimicrobial activity capable of neutralizing herpes simplex virus 1 infectivity in human neurons www.nature.com/articles/s41... @natneuro.nature.com
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Bryon Silva @neurogut.bsky.social · 10/12/2025
Textbooks said neurons don’t burn fatty acids for energy🤔. Our study delivers the first in vivo demonstration that fatty acid oxidation in defined memory neurons fuels memory formation. Closing chapter of my PhD 🥳, out today in Nature Metabolism💥 @natmetabolism.nature.com
nature.com
Neuronal fatty acid oxidation fuels memory after intensive learning in Drosophila - Nature Metabolism
Neurons are shown to use fatty acid β-oxidation as a fuel source for memory formation upon intensive learning in Drosophila, challenging the view that neurons are unable to use fatty acids for energy ...
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Baptiste Lacoste @blacoste.bsky.social · 17/12/2025
New preprint from the lab! For those who love astrocytes 🤩. We welcome feedback! #preprint #openaccess #astrocytes #autism
biorxiv.org
Metabolic, epigenetic and transcriptomic alterations in postnatal 16p11.2 deficient murine astrocytes
Autism Spectrum Disorders (ASD) are associated with metabolic dysregulation. While astrocytes are integral to cerebral metabolism, their molecular and functional changes in ASD are poorly known. Using...
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Travis Faust @travisfaust.bsky.social · 16/12/2025
Update: a Targetome commentary by Zhao, Agarwal & Bai discusses our Cell paper as part of a broader paradigm of glia–glia coordination—linking microglia–astrocyte signaling in synaptic pruning to cooperative glial mechanisms in processes such as myelination. www.maxapress.com/article/doi/...
maxapress.com
Glial Wnt dialogue controls synapses
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Misha Zilberter @mzilberter.bsky.social · 29/11/2025
Another great preprint on neuronal APOE4 from the Huang lab!
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Nature Metabolism @natmetabolism.nature.com · 17/11/2025
#NatMetabPicks | In @natcellbio.nature.com led by @olzmannlab.bsky.social ( @ucberkeleyofficial.bsky.social ) FSP1, localized to lipid droplets, protects stored lipids from oxidative damage and prevents ferroptosis. www.nature.com/articles/s41...
nature.com
FSP1-mediated lipid droplet quality control prevents neutral lipid peroxidation and ferroptosis - Nature Cell Biology
Lange et al. identify a lipid droplet quality control pathway in which FSP1 safeguards stored neutral lipids from lipid peroxidation, thereby preventing the induction of ferroptosis.
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Shannon Macauley @macauleylab.bsky.social · 13/11/2025
Our new review is out today! 𝗧𝗵𝗲 𝗘𝗻𝗲𝗿𝗴𝗲𝘁𝗶𝗰 𝗖𝗼𝗹𝗹𝗮𝗽𝘀𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗔𝗹𝘇𝗵𝗲𝗶𝗺𝗲𝗿’𝘀 𝗕𝗿𝗮𝗶𝗻: 𝗠𝗲𝘁𝗮𝗯𝗼𝗹𝗶𝗰 𝗜𝗻𝗳𝗹𝗲𝘅𝗶𝗯𝗶𝗹𝗶𝘁𝘆 𝗔𝗰𝗿𝗼𝘀𝘀 𝗖𝗲𝗹𝗹𝘀 𝗮𝗻𝗱 𝗡𝗲𝘁𝘄𝗼𝗿𝗸𝘀 We argue that Alzheimer’s disease is not just a problem of brain hypometabolism, but a disorder of metabolic inflexibility. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
The Energetic Collapse of the Alzheimer's Brain: Metabolic Inflexibility Across Cells and Networks
Metabolic inflexibility in Alzheimer's disease. Schematic illustrating the biphasic trajectory of metabolic activity relative to canonical Alzheimer's disease (AD) biomarkers. In the presymptomatic p...
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Kirstie Cummings @kacummings.bsky.social · 23/10/2025
The Cummings Lab is hiring a postdoc to work in the areas of reward and addiction! Please see the ad below:
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Baptiste Lacoste @blacoste.bsky.social · 07/11/2025
#astrocytes #endothelium #cerebrovascular 😱🤩🤩
nature.com
Molecular profiling of brain endothelial cell to astrocyte endfoot communication in mouse and human - Nature Communications
Deciphering body-brain communication pathways is key to a deeper understanding of brain physiology and pathology. Here, the authors define the astrocyte endfoot proteome and show dynamic vascular-to-a...
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Orr laboratory @orrlaboratory.bsky.social · 04/11/2025
Check out the latest WCM Newsroom article!! tinyurl.com/mry78yh8
tinyurl.com
Study Pinpoints Source of Free Radicals in the Brain that May Fuel Dementia
Researchers have discovered that free radicals generated at a specific site in non-neuronal brain cells called astrocytes, may promote dementia, according to a Weill Cornell Medicine study.
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Orr laboratory @orrlaboratory.bsky.social · 04/11/2025
Congratulations to the first author Daniel Barnett, a student in the @weillcornell.bsky.social Neuroscience Graduate program, and big thanks to our superb collaborators @liganlab.bsky.social @wjnyc.bsky.social, Haopeng Xiao, and Ed Chouchani🙏🙌
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Orr laboratory @orrlaboratory.bsky.social · 04/11/2025
Thrilled to publish our new study on #mitochondrial ROS coming from complex III, revealing this key site in #astrocytes 🎯as a crucial immunometabolic signal transducer🤯 and potential therapeutic target for #dementia #FTD 💊 rdcu.be/eOc0m 👈💪 Great commentary by H. Pan and F. Yin🤩! tinyurl.com/4hdytw4c
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Nature Metabolism @natmetabolism.nature.com · 04/11/2025
bit.ly
Mitochondrial ROS sources steer neuroinflammation
Nature Metabolism, Published online: 04 November 2025; doi:10.1038/s42255-025-01391-xBy parsing stimulus-responsive sources of astrocytic reactive oxygen species (ROS), Barnett et al. reveal how mitochondrial complex III-derived signals uniquely shape inflammatory responses and astrocyte–neuron crosstalk, linking mitochondrial redox cues to dementia-related neurodegeneration.
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